A situation with something missing
Lateral thinking puzzles reveal an outcome while leaving out the background that explains it. You test possibilities through questions instead of choosing a ready-made answer.
A host when you want to play
The AI answers Yes, No or Irrelevant to the solution, and may ask you to clarify. You can investigate on your own without finding a friend who already knows the answer.
Build an explanation, one clue at a time
Valid discoveries accumulate across turns. Uncover all the required facts to solve the story; there is no final script to recite. AI judgments can be wrong, and you can report them in the game.
Play in English or Chinese
Both the game and its guides are available in English and Chinese. Learn the rules, then choose from the puzzles currently available to you in the game.